The most common sheathing materials are plywood and oriented strand board . Roof rafters are typically found in stick-frame roofs, which have several rafters arranged side by side that run from the roof ridge to the external wall’s wall plate. Rafters provide a framework that supports the roof deck and roofing materials. Roofers will custom-cut all necessary lumber on-site and use ceiling joists to secure the rafters and connect them to the exterior walls. If you enjoyed this write-up and you...